import Vue from 'vue'
import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken, removeToken } from '@/utils/auth'

Vue.prototype.$axios = axios;

// create an axios instance
const service = axios.create({
  // baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  baseURL: "", // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 30000 // request timeout
})

// 请求拦截
// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent
    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['token'] = getToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    // console.log(response)
    const res = response.data

    if (res.code) {
      // if the custom code is not 20000, it is judged as an error.
      if (res.code !== 1000) {
        Message({
          message: res.message || 'Error',
          type: 'error',
          duration: 5 * 1000
        })

        // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
        if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
          // to re-login
          MessageBox.confirm('你已被登出，可以取消继续留在该页面，或者重新登录', '确定登出', {
            confirmButtonText: '重新登录',
            cancelButtonText: '取消',
            type: 'warning'
          }).then(() => {
            store.dispatch('user/resetToken').then(() => {
              location.reload()
            })
          })
        }
        return Promise.reject(new Error(res.message || 'Error'))
      } else {
        return res
      }
    } else if (res.status) {
      if (res.status !== 200) {
        Message({
          message: res.msg || 'Error',
          type: 'error',
          duration: 5 * 1000
        })
        return Promise.reject(new Error(res.msg || 'Error'))
      } else {
        return res
      }
    }
  },
  error => {
    console.log('err' + error) // for debug

    if (error.response) {
      switch (error.response.status) {
        case 401:
          // 这里写清除token的代码
          // router.replace({
          //   path: '/login',
          //   // query: {redirect: router.currentRoute.fullPath}//登录成功后跳入浏览的当前页面
          // });
          removeToken();
          break;
        case 500:
          // 这里写清除token的代码
          Message.error("500 服务器内部错误");
      }
      return Promise.reject(error.response.data)
    } else {
      Message({
        message: '请求失败',
        type: 'error',
        duration: 3 * 1000
      })
      return Promise.reject(error)
    }
  }
)

export default service
